A block of 4kg is kept …
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A block of 4kg is kept on ground the coefficient of friction between block and the ground is 0.80 . An external force of magnitude 30 N is applied parallel to the ground the resultant force exerted by the block on ground is
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Preeti Dabral 2 years, 1 month ago
Explanation: N = mg = 40
(fs )max = μN = (0.8) (40) = 32
f s = ext. force = 30
R2 = N2 + fs 2 = (50)2
R = 50 N.
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